Question
Physics Question on Carnot engine
When the temperature of the source of a Carnot engine is at 400 K, its efficiency is 25%. The required increase in temperature of the source to increase the efficiency to 50% is
A
800 K
B
600K
C
100 K
D
400 K
E
200 K
Answer
400 K
Explanation
Solution
The correct option is (D) : 400 K